Conversion calculator



FIG. 1 is a front elevational view of a conversion calculator showing my new design;

FIG. 2 is a bottom plan view;

FIG. 3 is a front elevational view of a conversion calculator showing a modified form of my new design;

FIG. 4 is a bottom plan view thereof; and

FIG. 5 is a right side elevational view thereof.

The unseen sides and edges of either embodiment of the calculator are unornamented.

The backs of both embodiments are absolutely plain, except for printed matter, the top and bottom plan views of both embodiments are identical, as are the edge views of either edge, except for the overlap running the length of the calculator, as shown clearly in FIGS. 2 and 4. 

The ornamental design for a conversion calculator, as shown and described. 